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Non-Transient Non-Community Water System · PWS NJ1107325

Terhune Orchards

Princeton, New Jersey 08540 - drinking water served from groundwater sources to 1,025 people, tracked in EPA SDWIS and UCMR5.

1,025
People served
168
EPA violations
5
Health-based
Untested
UCMR5 result

The verdict

EPA records 168 drinking-water violations at Terhune Orchards, 3% of them health-based - above the New Jersey per-system average.

168
Total EPA violations on record
3%
Health-based (MCL / treatment failure)
1,025
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Terhune Orchards

Terhune Orchards is a private-owned non-transient non-community water system that delivers drinking water to 1,025 residents in Princeton, New Jersey (Mercer County) through 5 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 168 total violations for this system , of which 5 (3%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 147 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 16 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across New Jersey, EPA tracks 3,428 public water systems serving 9,570,926 people, with 204,988 cumulative violations and 22,229 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 59.8 violations. Statewide, 208 of 264 UCMR5-tested systems have reported PFAS detections (78.8%).

Terhune Orchards's 168 violations sit above the New Jersey average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
1,025
Total Violations
168
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
5
County
Mercer
School/Daycare
No
MCL Violations
5
Monitoring Violations
147
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 16 2024
Revised Total Coliform Rule RPT 12 2021
Revised Total Coliform Rule MON 9 2021
1,2-DIBROMO-3-CHLOROPROPANE MR 6 2020
Arsenic MR 5 2022
Revised Total Coliform Rule MCL 5 2016
1,2,4-Trichlorobenzene MR 4 2019
1,1,1-Trichloroethane MR 4 2019
Carbon tetrachloride MR 4 2019
CHLOROBENZENE MR 4 2019
Benzene MR 4 2019
Ethylbenzene MR 4 2019
Styrene MR 4 2019
Xylenes, Total MR 4 2019
DICHLOROMETHANE MR 4 2019
o-Dichlorobenzene MR 4 2019
p-Dichlorobenzene MR 4 2019
cis-1,2-Dichloroethylene MR 4 2019
Vinyl chloride MR 4 2019
1,1-Dichloroethylene MR 4 2019
trans-1,2-Dichloroethylene MR 4 2019
1,2-Dichloropropane MR 4 2019
1,1,2-Trichloroethane MR 4 2019
Toluene MR 4 2019
1,2-Dichloroethane MR 4 2019
Trichloroethylene MR 4 2019
Tetrachloroethylene MR 4 2019
ETHYLENE DIBROMIDE MR 3 2019
Fluoride MR 2 2022
Mercury MR 2 2022

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Terhune Orchards.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID NJ1107325 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New Jersey Drinking Water Authority

NJ DEP, Bureau of Safe Drinking Water is the primacy agency that licenses and inspects Terhune Orchards under EPA-delegated authority.

Open NJ regulator portal

Source: NJ DEP, Bureau of Safe Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 Lead and Copper Rule MR 16 SDWIS / NJ1107325 / 5000
2022 Arsenic MR 5 SDWIS / NJ1107325 / 1005
2022 Fluoride MR 2 SDWIS / NJ1107325 / 1025
2022 Mercury MR 2 SDWIS / NJ1107325 / 1035
2022 Nickel MR 2 SDWIS / NJ1107325 / 1036
2022 Beryllium, Total MR 2 SDWIS / NJ1107325 / 1075
2022 Selenium MR 2 SDWIS / NJ1107325 / 1045
2022 Cadmium MR 2 SDWIS / NJ1107325 / 1015
2022 Chromium MR 2 SDWIS / NJ1107325 / 1020
2022 CYANIDE MR 2 SDWIS / NJ1107325 / 1024
2022 Antimony, Total MR 2 SDWIS / NJ1107325 / 1074
2022 Thallium, Total MR 2 SDWIS / NJ1107325 / 1085
2022 Barium MR 2 SDWIS / NJ1107325 / 1010
2021 Revised Total Coliform Rule RPT 12 SDWIS / NJ1107325 / 8000
2021 Revised Total Coliform Rule MON 9 SDWIS / NJ1107325 / 8000

How Terhune Orchards Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Terhune Orchards New Jersey avg Federal benchmark
Total violations 168 59.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 5 6.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 78.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1,025 2,792 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 3,428 regulated public water systems in New Jersey.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Terhune Orchards water safe to drink? ▼
Terhune Orchards (PWS ID: NJ1107325) has 168 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,025 people using Groundwater sources.
How many people does Terhune Orchards serve? ▼
Terhune Orchards serves 1,025 people in Princeton, New Jersey. It is a Private-owned system using Groundwater water sources with 5 service connections.
What type of violations does Terhune Orchards have? ▼
Terhune Orchards has 168 total violations: 5 health-based violations (MCL exceedances or treatment failures), 147 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Terhune Orchards water? ▼
No PFAS testing data is available for Terhune Orchards under the EPA's UCMR5 monitoring program.
What water source does Terhune Orchards use? ▼
Terhune Orchards uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.